The Rhine Maiden (The Saint TV Series)

Plot
In Germany the Saint saves a young girl, Julia, from what appears to be an accident but is an attempt on her life by Charles Voyson, a man who swindled her father out of £250,000 and is planning to change his identity. Voyson feigns illness and is taken to a clinic run by an accomplice, Dr. Schreiber, who informs Julia and the Saint that Voyson has just died. In fact he is very much alive and about to jump onto a train. The Saint and Julia follow him but she is captured by Voyson and held hostage in his compartment. The Saint climbs along the carriages to save her.

Origin
This episode was adapted from the short story of the same name from the 1953 book The Saint in Europe.